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Angular diameter (2375 bytes)
1: ... It satisfies the formula <math>\delta = \arctan (diameter/ distance)</math>. 3: ... sky are often measured in terms of their angular diameter as seen from Earth, rather than their actual size... 5: The angular diameter of Earth's orbit around the Sun, from a distance ... 7: The angular diameter of the Sun, from a distance of one [[lightyear]],... 9: This table shows the angular sizes of the most important [[Solar System]] bodi... Diameter (2652 bytes) 1: ... diameter rather than ''a'' diameter, because all diameters of a circle have the same length. This length is... 3: The '''diameter''' of a [[Graph theory|connected graph]] is the d... 5: ...ts in the subset. So, if ''A'' is the subset, the diameter is 8: ==Diameter symbol== 10: [[Image:Sign diameter.jpg|thumb|150px|Sign Ø from [[Autocad]] drawing]] DIAMETER (1162 bytes) 1: ''For the geometric term, see [[diameter]].'' 3: ...the predecessor (a diameter is twice the radius). Diameter is not directly [[backwards compatible]], but pro... 5: ...the AAA Transport Profile (RFC 3539). Examples of Diameter applications currently in preparation are : 14: * http://www.diameter.org/ 15: * http://www.opendiameter.org/ Beam diameter (980 bytes) 1: '''Beam diameter''': Of an electromagnetic [[beam]], along any sp... 3: Beam diameter is usually used to characterize electromagnetic b... 5: ...on, in which case the orientation of the [[beam]] diameter must be specified, <i>e.g.,</i> with respect to t... Hydraulic diameter (640 bytes) 1: The '''hydraulic diameter, <math> D_h </math>''', is commonly used term whe... 14: ...3_heat.htm Heat exchanger calculations: Hydraulic Diameter] Mode field diameter (708 bytes) 1: In [[telecommunication]], a '''mode field diameter''' (MFD) is an expression of distribution of the ... 3: ...ced to 1/e of their maximum values, ''i.e.,'' the diameter at which power is reduced to 1/e<sup>2</sup> of t... Small-diameter bomb (1363 bytes) 1: The '''small-diameter bomb''' ('''SDB''') is a 250 pound (110 kg) class... Angular (267 bytes) 1: ... jaw in [[mammals]]), the [[splenial]], the [[suprangular]], and the [[articular]]. Angular size (2030 bytes) 1: '''Angular size''' is a measurement of how large or small so... 3: It is easy to understand [[angular]] size by imagining that you standing some distan... 5: ... 5 degrees? 10 degrees? 90 degrees? That is the angular size of the landmark from your location. 7: ...are to the object you are measuring. This is why angular size is useful in [[astronomy]] - with minor exce... 9: ..., we need much finer units when talking about the angular size of galaxies, nebulae or other objects of the... Angular resolution (4785 bytes) 1: ... separation of images that are close together. '''Angular resolution''' describes the resolving power of a ... 9: ... is the [[wavelength]] of light, and ''D'' is the diameter of the lens. 17: ...er]] beam), the value of ''D'' corresponds to the diameter of the light beam, not the lens. Since the spatia... 21: ... the [[VLTI]] is intended to achieve an effective angular resolution of 0.001 arcsecond. 23: ... ''R'' is in [[radian]]s. Sources larger than the angular resolution are called extended sources or diffuse... Angular aperture (381 bytes) 1: The '''angular aperture''' of a [[lens (optics)|lens]] is the ap... 7: ...s the [[focal length]], and <math>A</math> is the diameter of the aperture. 11: [[es:Apertura angular]] Angular momentum (7807 bytes) 1: ...momentum to specify the origin and not to combine angular momenta about different origins. 4: == Angular momentum in classical mechanics == 8: The traditional mathematical definition of the angular momentum of a particle about some origin is: 14: '''L''' is the angular momentum of the particle, 20: ... rotation, the [[mass]] of the particle and the [[angular velocity]]. Angular displacement (233 bytes) 1: '''Angular displacement''' of a body is the [[angle]] in [[r... Angular velocity (4265 bytes) 1: ...ribes the speed of rotation. The direction of the angular velocity vector will be along the axis of rotatio... 3: ... denoted by ω. The line of direction of the angular velocity is given by the [[axis]] of rotation, an... 5: ...ion of the rotation, then the direction of the '''angular velocity''' vector is indicated by your right thu... 7: ...a direction must also be given. The dimensions of angular velocity are T<sup>−1</sup>, since radians ... 9: With constant [[angular acceleration]], the angular velocity conforms to the rotational [[equations o... Angular acceleration (486 bytes) 1: ...ngular acceleration''' is the rate of change of [[angular velocity]] over [[time]]. 5: For constant values of angular acceleration, a rotating body conforms to the rot... 8: *[[angular speed]] 9: *[[angular velocity]] 10: *[[angular momentum]] Angular frequency (1996 bytes) 1: ...etimes used as a synoym for the vector quantity [[angular velocity]] . 3: In [[SI]] units, angular frequency is measured in [[radian|radians]] per [... 12: ''ω'' is the angular frequency or angular speed (measured in [[radian]]s per [[second]]) 22: ...le multiple of ordinary frequency. However, using angular frequency is often preferable in many application... 36: *[[Angular velocity]] Constant Angular Velocity (643 bytes) 1: ... With an LP, the disc always spins at the same ''angular'' rate (CAV), so the surface of the record groove... Angular misalignment loss (515 bytes) 1: ...r]] [[loss]] caused by the deviation from optimum angular alignment of the axes of source-to-waveguide, wav... 4: <i>Note 2:</i> Angular misalignment loss does not include [[lateral offs... Relative angular momentum (1348 bytes) 1: In [[astrodynamics]] '''relative angular momentum''' (<math>\mathbf{H_{{2}/{1}}}\,\!</math... 11: ...''' is usually used to derive [[specific relative angular momentum]] (<math>\mathbf{h}\,\!</math>): 17: *[[Specific relative angular momentum]] Angular momentum coupling (3817 bytes) 2: ...[[angular momentum]] of bodies can interact in '''angular momentum coupling'''. These interactions in atoms... 5: ...l cases, of the [[spin (physics)|spin]] and the [[Angular momentum]]. 10: ... L = ΣL<sub>i</sub> are the coupled orbital angular momenta and S = ΣS<sub>i</sub> are the coup... 13: ...coupling is separate coupling of spin and orbital angular momentum for each electron. It is used for large ... 16: ...'' is the coupling of the [[spin (physics)|spin]] angular momentum states of particles. [[NMR|H-NMR]] depen...
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